Cesare Marilungo wrote: > This is my lsusb -v output: > > Bus 001 Device 002: ID 0582:0025 Roland Corp. > ... > bcdDevice 1.01 > ... > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 1 > bAlternateSetting 1 > bNumEndpoints 1 > bInterfaceClass 255 Vendor Specific Class > bInterfaceSubClass 2 > bInterfaceProtocol 0 > iInterface 0 > Endpoint Descriptor: > bLength 9 > bDescriptorType 5 > bEndpointAddress 0x01 EP 1 OUT > bmAttributes 9 > Transfer Type Isochronous > Synch Type Adaptive > Usage Type Data > wMaxPacketSize 0x0120 bytes 288 once > bInterval 1 > bRefresh 0 > bSynchAddress 0 It seems some moron at Roland made a new revision of this device and left out the class-specific descriptors that would have told the driver what sample format to use. I've changed the driver to use a hard-coded sample format for the UA-20. This should be on the public CVS servers in a hour or so. HTH Clemens
